.selected-node {
  background-color: #ecf5ff;
  color: #409eff;
}

.folder-node {
  font-weight: bold;
}

.file-node {
  padding-left: 20px;
}

.node-span {
  color: #333;
  font-size: 14px;
  padding: 5px 10px;
  border-radius: 4px;
  display: block;
}